ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,461, issued on Aug. 5, was assigned to Siemens Gamesa Renewable Energy A/S (Brande, Denmark).

"Airgap control in an electric generator for a wind turbine" was invented by Ziad Azar (Sheffield, Great Britain) and Alexander Duke (Sheffield, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electric generator for a wind turbine is provided including a stator or rotor, the stator or rotor having plurality of winding systems, each winding system covering a respective angular portion of the stator or rotor about an axis of rotation of the electric generator, and a controller for controlling the current flowing in the winding systems. The cont...